certify
verb
[ ˈsəːtɪfʌɪ ]
• attest or confirm in a formal statement.
• "the profits for the year had been certified by the auditors"
Similar:
verify,
guarantee,
attest,
validate,
ratify,
warrant,
confirm,
corroborate,
substantiate,
endorse,
vouch for,
testify to,
provide evidence of,
authenticate,
document,
bear witness to,
bear out,
give proof of,
prove,
demonstrate,
back up,
support,
Origin:
Middle English: from Old French certifier, from late Latin certificare, from Latin certus ‘certain’.